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Automatic focusing and imaging module and imaging method

An automatic and modular technology, applied in the field of imaging, can solve problems such as the decline of the imaging effect of the imaging module, the inability of the EDoF technology to fully function, and the unsatisfactory focusing effect of the digital auto-focus technology, so as to prevent calculation accuracy and improve the effect. Effect

Inactive Publication Date: 2013-07-03
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the defect of digital autofocus is that it is not capable of short-range imaging. Generally speaking, if the object distance is within 40cm, the focusing effect of digital autofocus technology is often unsatisfactory.
In addition, if there is shaking during the shooting process, the EDoF technology will not be able to fully function, resulting in a decline in the imaging effect of the imaging module

Method used

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  • Automatic focusing and imaging module and imaging method
  • Automatic focusing and imaging module and imaging method
  • Automatic focusing and imaging module and imaging method

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Embodiment Construction

[0095] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0096] see figure 1 , is a schematic diagram of an autofocus imaging module 100 according to an embodiment of the present invention, and the autofocus imaging module 100 includes an imaging lens 10, an image sensor 20, a color separation unit 30, a processor 40, a An image processing unit 50 , a focus driver 60 and an optical image stabilization (OPTICAL IMAGE STABILIZING: OIS) unit 70 . The center of the image sensor 20 is aligned with the optical axis of the imaging lens 10, the color separation unit 30 is connected to the image sensor 20, the processor 40 is connected to the color separation unit 30, and the image Both the processing unit 50 and the focusing driver 60 are connected to the processor 40 , and the focusing driver 60 is also connected to the imaging lens 10 . The OIS unit 70 is connected with the imaging lens.

[0097] The imaging lens 10 is used t...

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Abstract

The invention relates to an automatic focusing and imaging module which comprises a taking lens, a video sensor, a color separating unit, a processor, an image processing unit, a focusing driver and an optical image stabilizing unit, wherein the taking lens is used for capturing an image of an object; the video sensor is used for sensing the image captured by the taking lens; the color separating unit is used for expressing the image sensed by the video sensor with three primary colors, namely red, green and blue; the processor is used for conducting MTF (Modulation Transfer Function) operation on the image sensed by the video sensor, determining the current shooting mode according to an operation result, and selectively controlling the image processing unit or the focusing driver according to the determined current shooting mode; and the optical image stabilizing unit is used for detecting jitter of the taking lens before shooting, and conducting jitter compensation on the taking lens. The invention further relates to an imaging method.

Description

technical field [0001] The invention relates to an imaging module, in particular to an auto-focus imaging module and an imaging method. Background technique [0002] With the advancement of technology, the lens modules of most electronic devices have an auto-focus function. The autofocus technology of the lens module is divided into mechanical autofocus technology and digital autofocus technology. [0003] Mechanical autofocus technology uses a mechanical structure to move the lens inside the lens to focus. Since the mechanical focusing technology needs to adopt a complicated mechanical structure, the cost of the auto-focus lens increases and the volume is relatively large. [0004] Digital auto-focus technology uses software simulation and calculation to process the image sensed by the image sensor, so that the blurred image due to out-of-focus pixels on the image sensor becomes clear. For example, Extend Depth of Field (EDoF) technology uses the three primary colors of ...

Claims

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Application Information

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IPC IPC(8): G02B7/09G02B7/28G03B13/36G03B5/00
Inventor 吴定远吴松青
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD